name = "world"
title = "zones, terrain, and navigation"
body = """
  the world is made of zones - spatial areas with terrain grids.
  zones can be toroidal (wrapping at edges) or bounded.

  terrain types
    each zone has a grid of terrain tiles with different properties.
    some tiles are impassable (mountains ^, water ~).
    the overworld is procedurally generated and wraps seamlessly.

  zones
    zones are separate areas - the overworld, dungeons, interiors.
    each zone has a spawn point where you appear when entering.
    zones can contain mobs, items, portals, and players.

  navigation
    move with cardinal directions: north, south, east, west.
    use 'look' to see terrain and objects around you.
    toroidal zones wrap - walk far enough and you loop back.

  portals
    portals connect zones (doorways, stairs, gates).
    walk onto a portal tile and type 'enter <portal>'.
    you'll teleport to the target zone at specific coordinates.

  player homes
    type 'home' to teleport to your personal zone.
    this is a private space you can furnish and customize.
    type 'home return' to go back to where you were.
"""